In for Joe Stiglich all three days of the Bay Bridge Series as he continues to recover from Japan jetlag

We’re on the calm side of things here at AT&T Park for the first game of three. The Matt Cain signing dominated the news here, but the A’s weren’t without a few noteworthy ditties.

For starters, infielder Adam Rosales was optioned to Triple-A, meaning Eric Sogard has made the team as the roving middle infielder. Rosales might have been the preference initially, but was set back by a shoulder problem early in spring and never really got it going once he got on the field. Manager Bob Melvin said Rosales needs at-bats, and he’ll get them in Triple-A.

The A’s still have two more roster trims to make. One of them could wind up being whoever the fifth starter turns out to me, since with a slew of early-season off days, they won’t need a fifth starter until mid-April. The other trim will likely take place among the three first basemen — Daric Barton, Kila Ka’aihue and Brandon Allen. It almost seems like a no-brainer. I talked to Barton before the game and he admitted he’s not completely sure he’s fully ready for everyday play. Among other things, he said he hasn’t cut loose with a hard throw to second base yet, and he only played back-to-back games in extended spring training this past weekend. Yet Melvin hasn’t ruled him out of the Oakland Opening Day mix.

Another factor: Brandon Allen and Ka’aihue are out of options and Barton isn’t. What’s more, the two former players had solid springs. Allen hit .303 with a couple of homers, Ka’aihue hit just .242 but led the club in home runs with three.

Elsewhere, Dallas Braden flew East and was scheduled to have his left shoulder examined by Dr. David Altcheck, the Mets medical director who performed surgery to repair Braden’s torn anterior capsule last May. Results of the exam should be known later tonight or Tuesday.

Another pitching shutdown was announced Monday — right-handed reliever Joey Devine, who had already been optioned to the minors. Devine’s elbow is acting up again. He’s experiencing soreness, and will be examined in the next day or so.

Catcher Kurt Suzuki said he’s feeling fine after getting hit in the arm with a pitch against Sacramento pitcher Jarrod Parker Saturday night.

Yoenis Cespedes is batting cleanup tonight against the Giants’ Madison Bumgarner. That could be fun. Even if it isn’t, great to have baseball back in the Bay. Now all we need are some games that really count.